Bluetti AC70 vs EcoFlow RIVER 2
Side-by-side on the specs that decide it — surge, capacity, runtime and price.
Both models' specs verified against manufacturer listings · Last updated
The short answer
EcoFlow RIVER 2 costs $300 less. Whether that gap is worth closing depends on what you need to run.
- Bluetti AC70 holds 200% more energy (768Wh vs 256Wh), so it runs the same load proportionally longer.
- Bluetti AC70 has 1400W more surge headroom (2000W vs 600W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 is 14.3 lb lighter (7.7 lb vs 22 lb).
Neither of these will start a sump pump or well pump — both surge below the ~3,400W those motors need. If home backup with pumps is your use case, look at higher-surge models instead of either of these.
768Wh with 1000W output at $499 — it does what the EcoFlow River 2 Pro does, with more output and more weight.
Best for: Campers who need to run a small fridge, not just charge devices.
Where it falls short:
- 22 lb — 5 lb heavier than the River 2 Pro
- Not expandable
The cheapest way into LiFePO4. 256Wh is a device charger, but at under $200 with a 60-minute recharge it's hard to argue with.
Best for: Budget campers who just need to keep phones, cameras and a laptop alive.
Where it falls short:
- 300W output runs devices only
- 256Wh is a single evening of real use
| Spec | Bluetti AC70 | EcoFlow RIVER 2 |
|---|---|---|
| Price | $499 | $199 |
| Capacity | 768 Wh | 256 Wh |
| Continuous output | 1000 W | 300 W |
| Surge output | 2000 W | 600 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 22 lb | 7.7 lb |
| Max solar | 500 W | 110 W |
| Recharge time (faster wins) | 1h 15m | 1h |
Runtime head-to-head
| Appliance | Bluetti AC70 | EcoFlow RIVER 2 |
|---|---|---|
| Refrigerator | 10.9 hrs | ❌ |
| Mini fridge | 20.7 hrs | 6.9 hrs |
| Chest freezer | 8.2 hrs | ❌ |
| CPAP machine | 16.3 hrs | 5.4 hrs |
| Sump pump | ❌ | ❌ |